What is Sasang Constitutional Medicine?

Sasang is an Oriental healing system, unique to Korea. The philosopher and doctor, Lee Jae-Ma developed this system of Body Constitution after noticing that while most people would respond favorably to medicines and treatments, some people would actually get worse using the same medicines. There are four constitutional types within this system that are typically diagnosed by observation.

Sasang Constitutional

The Four Sasang Constitutions


Tae-eum (Greater Yin)

For the Tae-eum constitution the liver is the strongest organ and the lung is the weakest.  Here the cold energy has reached the extreme and is about to turn from Yin to Yang.  (Because of this, it is possible for Tae-eum to have warm central energy.  This is relatively uncommon, however.)  People of the Tae-eum constitution tend to be slow, thoughtful and deliberate.

  • Strong Organ      >     Liver
  • Weak Organ        >     Lung
  • Central Energy    >     Hot or Cold

Tae-yang (Greater Yang)

Tae-yang are characterized by having excessively strong lung energy and very weak liver energy.  Their Central Energy is hot so they need to avoid any food or supplement that is warming in nature.  To achieve balance they should avoid foods that strengthen the lung and eat foods that strengthen the liver.  This constitution is quite rare in the population.

  • Strong Organ      >     Lung
  • Weak Organ        >     Liver
  • Central Energy    >    Hot

So-yang (Lesser Yang)

So-yang have excessively strong Central Energy that is hot and dry.  Their kidneys are weak.  They are often associated with the summer because of the heat in their systems and that heat is still increasing.  They need to avoid anything that increases heat and dryness and that strengthens the stomach and spleen.  They thrive on foods that are cooling and moistening in nature.

  • Strong Organ      >     Spleen
  • Weak Organ        >     Kidney
  • Central Energy    >    Hot

So-eum (Lesser Yin)

So-eum have excessively strong kidneys and weak, very cold Central Energy.  They are often described as similar to the winter because of the cold and damp of their systems.  The coldness is increasing like the weather after the solstice and often their energy is stagnant like frozen earth.  To balance their bodies they need lots of warmth.  Damp, wet foods and environments are especially bad for them.  Vegetarian and vegan diets do not suit them unless they daily eat very hot and spicy food that is typical of Indian or Thai cuisines.

  • Strong Organ      >     Kidney
  • Weak Organ        >     Spleen
  • Central Energy    >    Cold

A Reliable Method For Sasang Constitution Diagnosis:

It can be difficult to diagnose the body constitution accurately. Traditionally, a trained acupuncturist bases the diagnosis on external appearance, temperament, pulse reading and various symptoms. It is similar in certain ways to Ayurveda.

There is also a system of diagnosis based on Chinese Astrology. This method has proved far more accurate and reliable in identifying a person’s basic constitution and the relative balance between the internal organs than observation alone. In addition, using it, eliminates the need to travel for diagnosis, saving both time and expense.

Master Sunim's Method

Chinese Astrology

Ancient Chinese cosmology is based in Taoism; the idea that “all that is” comes from one source and is made up of and animated by that source, the Tao. Like acupuncture, Chinese Astrology is based in Taoism. Both use the same concepts of the balance of Yin Yang and the movement of life (Qi or Chi), the cycles of the Seasons and the interaction of the Five Elements or Phases. These concepts were further developed into areas of focus called the Five Chinese Arts.

  1. Self-healing – includes diet, meditation, and martial arts.
  2. Medicine – includes acupuncture and herbs
  3. Destiny – includes astrology
  4. Divination – predicting the future, includes the I Ching
  5. Form – which includes feng shui and sacred rites

All of these arts are considered equal and they all are dealing with the same concepts, simply applied in different areas. They all are concerned with the idea of living in harmony with the Tao and living out what the Chinese refer to as “your curriculum”. What in the West we might call “being all you were meant to be”.

In addition, they weave together in certain ways. An example is in acupuncture there are some acupuncture points that have certain therapeutic effects only at certain times of the day or during certain seasons, (Horary and Antique points). The only accurate way to determine the times when these points are active is by the use of Chinese astrology.

Your birth chart shows a relationship between each of the five elements and yin yang. When you were born, you entered a moment in time that had certain characteristics of the movement of qi, of the balance and interaction of yin yang and of the building and controlling of the five elements. This moment is imprinted in both your psychology and your biology and you carry the impact of this moment for your entire life. It is a descriptive representation of your “curriculum”.

“Discussion with Charles Fleck DSOM.
Results Using Chinese Astrology to Diagnose Sasang Constitution”

Still Haven’t Heard of Sasang Medicine?

There’s a tremendous amount of clinical data, published in scientific journals, coming out of Korea about Sasang Medicine. Take a listen to the podcast I did with Charles Fleck, DSOM discussing his research design and the symptom changes from this preliminary study.

Continuing Education

Licensed in California for CEUs for Acupuncturists:

Tracy Stewart was trained by JR Worsley in Five Element acupuncture and is qualified and licensed by the State of California to teach Sasang Diagnostic Method. Pending individual course approval, classes will provide CEU credits to California acupuncturists.

The course is designed to train acupuncturists from any discipline, including 5 Element and TCM. Practitioners will be able to utilize a more reliable Diagnostic Method to determine their patient’s inherent organ balance. This will provide them with a means to help their clients with personalized nutritional and lifestyle recommendations to improve and maintain their health.

This Diagnostic Method can also be used, by practitioners who specialize in Korean Sasang Acupuncture, to aid in the diagnosis of their patients. Tracy is not qualified to teach Korean acupuncture per se. However, the method can be used in addition to skills already possessed by those trained in Sasang. Please note, all classes will be in English.

Continued Education
Continued Education Curriculum


The Qi Balance Mentorship  is a 4-month program that is structured with Modules on history, application, relevance and principles of practice, followed by workshops and discussions of case studies and individual analyses of clients.

The primary goal is to thoroughly train practitioners in Qi Balance Diagnosis of Sasang Constitution so that they may use it to provide diet and lifestyle advice to clients regardless of the style of acupuncture they practice. Other goals are to provide another diagnostic tool for Sasang acupuncturists and to provide the classes in a format that meets the CEU requirements for all California acupuncturists.

Each month will start with a 4-6 hour Module, scheduled on a Saturday. Dates for the Modules will be scheduled throughout the year. Then 4 practical, interactive online discussions will be scheduled once a week for the remainder of that month. Only the Modules themselves will be eligible for CA acupuncture CEUs (Category 1). Most states will grant PDAs for CA CEUs. This depends on your state and you should check your state licensing body for this information.  This constitutes the Mentorship Program.

The Modules themselves are a basic teaching of the principles of this system. However, they, alone, will not prepare you to work competently in diagnosing and treating patients. Experiential training is paramount to the practice of all aspects of Asian medicine.

General outline of the program:

Module 1 – Korea/China history, Sasang Basics, Chinese Astrology

Module 2 – Easy charts, Earth charts, Personality and Energetic Influences

Module 3 – Medium charts, Fire, Water, Wood charts. Difficult charts, Metal charts

Module 4 – Patient support & education, Self-cultivation, Research, Program Review

CEU certificates will be issued at the end of each Module. However, the mentorship program must be completed in its entirety and a competency test, taken at the end of the series, must be passed to receive certification. The certificate will be suitable for display in your office. Ongoing support, at a nominal fee, will also be available to practitioners who have received their certification.

Class Registration:

Registration is now closed for the class, that started on May 14 2022.

If you are interested in taking the 4 month mentorship program in the future, would like to know more, or if you have questions, please contact us.

The next series of Modules will be presented on the following dates:

Module 1 – May 14, 2022 – 6 1/2 hours

Module 2 – June 11, 2022 – 4 hours

Module 3 – July 9, 2022 – 4 hours

Module 4 – August 13, 2022 – 4 hours

Class completion and final exam will be the week of Sept 11, 2022

Contact Us
Continued Education Certification